Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 4 - Review Exercises - Page 191: 51c



Work Step by Step

Since May is represented by $x=4$, we substitute $x=4$ in the equation to find the value of $t$: $t=60-30\cos\frac{x\pi}{6}$ $t=60-30\cos\frac{4\pi}{6}$ $t=60-30\cos\frac{2\pi}{3}$ $t=60-30(-\frac{1}{2})$ $t=60-15(-1)$ $t=60+15$ $t=75$ Therefore, the maximum afternoon temperature for the month of May is 75$^{\circ}$F.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.